Tea consumption and ovarian cancer risk: a case-control study in China
To investigate whether tea consumption has an etiological associationwith ovarian cancer, a case-control study was conducted in China during 1999–2000. The cases were 254 patients with histologically confirmed epithelial ovarian cancer. The 652 controls comprised 340 hospital visitors, 261 non-neopl...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
American Association for Cancer Research
2002
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| Online Access: | http://cebp.aacrjournals.org/content/11/8/713.full.pdf+html http://hdl.handle.net/20.500.11937/31779 |
| _version_ | 1848753477840273408 |
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| author | Zhang, Min Binns, Colin Lee, Andy |
| author_facet | Zhang, Min Binns, Colin Lee, Andy |
| author_sort | Zhang, Min |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | To investigate whether tea consumption has an etiological associationwith ovarian cancer, a case-control study was conducted in China during 1999–2000. The cases were 254 patients with histologically confirmed epithelial ovarian cancer. The 652 controls comprised 340 hospital visitors, 261 non-neoplasm hospital outpatients, and 51 women recruited from the community. Information on the frequency, type, and duration of tea consumption was collected by personal interview using a validated questionnaire. The risk of ovarian cancer for tea consumption was assessed using adjusted odds ratios based on multivariate logistic regression analysis, accounting for confounding demographic, lifestyle, and familial factors including hormonal status and family ovarian cancer. The ovarian cancer risk declined with increasing frequency and duration of overall tea consumption. The adjusted odds ratio was 0.39 for those drinking tea daily and 0.23 for those drinking tea for >30 years, compared with nontea drinkers. The dose response relationships were significant, and the inverse association with ovarian cancer was observed for green tea consumption. We concluded that increasing frequency and duration of tea drinking, especially green tea, can reduce the risk of ovarian cancer. However, the protective effects of black tea and Oolong tea need to be additionally investigated. |
| first_indexed | 2025-11-14T08:25:09Z |
| format | Journal Article |
| id | curtin-20.500.11937-31779 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:25:09Z |
| publishDate | 2002 |
| publisher | American Association for Cancer Research |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-317792017-01-30T13:27:21Z Tea consumption and ovarian cancer risk: a case-control study in China Zhang, Min Binns, Colin Lee, Andy To investigate whether tea consumption has an etiological associationwith ovarian cancer, a case-control study was conducted in China during 1999–2000. The cases were 254 patients with histologically confirmed epithelial ovarian cancer. The 652 controls comprised 340 hospital visitors, 261 non-neoplasm hospital outpatients, and 51 women recruited from the community. Information on the frequency, type, and duration of tea consumption was collected by personal interview using a validated questionnaire. The risk of ovarian cancer for tea consumption was assessed using adjusted odds ratios based on multivariate logistic regression analysis, accounting for confounding demographic, lifestyle, and familial factors including hormonal status and family ovarian cancer. The ovarian cancer risk declined with increasing frequency and duration of overall tea consumption. The adjusted odds ratio was 0.39 for those drinking tea daily and 0.23 for those drinking tea for >30 years, compared with nontea drinkers. The dose response relationships were significant, and the inverse association with ovarian cancer was observed for green tea consumption. We concluded that increasing frequency and duration of tea drinking, especially green tea, can reduce the risk of ovarian cancer. However, the protective effects of black tea and Oolong tea need to be additionally investigated. 2002 Journal Article http://hdl.handle.net/20.500.11937/31779 http://cebp.aacrjournals.org/content/11/8/713.full.pdf+html American Association for Cancer Research restricted |
| spellingShingle | Zhang, Min Binns, Colin Lee, Andy Tea consumption and ovarian cancer risk: a case-control study in China |
| title | Tea consumption and ovarian cancer risk: a case-control study in China |
| title_full | Tea consumption and ovarian cancer risk: a case-control study in China |
| title_fullStr | Tea consumption and ovarian cancer risk: a case-control study in China |
| title_full_unstemmed | Tea consumption and ovarian cancer risk: a case-control study in China |
| title_short | Tea consumption and ovarian cancer risk: a case-control study in China |
| title_sort | tea consumption and ovarian cancer risk: a case-control study in china |
| url | http://cebp.aacrjournals.org/content/11/8/713.full.pdf+html http://hdl.handle.net/20.500.11937/31779 |